I did not know about this forum until recently. I am posting an incident that happened a couple of years ago. I was outside of a restaraunt waiting for my family to come out after dinner and I was looking at the clouds in the night sky and I noticed three white steady lights in a triangle pattern moving at an incredible rate of speed in and out of the clouds absolutely silent. I was at approx. 5500 feet in elevation and this craft must have been at 12,000 feet or more. At that altitude it traversed the sky from the time I saw it to its dissapearance in about 5 seconds! I dont know of any aircraft that I have seen from the ground travel that fast. It looked so unnatural to what I am used to seeing that it still confuses me in regards to what I saw that night.